Chimney.



M. E. HOWE.

CHIMNEY.

APPLICATION mum JULY :1, 1908.

909,412. Patented Jan 12, 1909.

anoznl or,

MILO 1:. sown, or MdRRIS, ILLINOIS.

CHIMNEY.

Specification of Letter: Paton-t.

Patented Jan. 12, 1909.

Application filed July 27, 1908. Serial No. 445,661.

To all whom. it may concern:

Be it known that I, MILO E. Hows, citizen of the United States, residingat Morris, in the county of Grundy and State of Illinois, have inventedcertain new and useful Imrovements in Chimneys, of which the folowing isa specification.

This invention relates to chimneys, and has for its object to provide animproved chimney constructed of concrete and made of sections which aremolded in advance and which can be quickly set up to form a chimneywhich will be permanent and fire proof.

Brick chimneys have the defect that the mortar decays and drops out,causing loose bricks and open .joints, allowing the chimney to fall, andalso bein unsafe because of fire. By the use of molded'sections made ofconcrete and extending entirely around the flue, and joined together bycement, these disadvantages and dangers are avoided. The sections aremolded and put together with doweled joints,and when completed formsubstantial] one solid piece of cement of great durabi ity. The chimneycan be built by inexperienced persons, since it only requires that oneblock or section be put upon another until the desired height isreached. This can be done very quickly and in a small fraction of thetime required to build a brick chimney. By variation of the molds andthe sections, chimneys of different'kinds can be made, containing one ormore lines as desired.

The nature of the invention will be more fully ap arent from thefollowing description an the accompanying drawings in which Figure 1 isa perspective view of part of a. chimney, some of the blocks beingremoved in order to show the interior construction; Fig. 2 is aperspective view of one of the blocks so removed; 3 is a. perspectiveView of a cap piece; igs. 4: and 5 are respectively perspective views ofup er and lower sections of an ornamental head for the chimney; Fig. 6is a perspective View of a hooded head.

In Fig. 1, a two-flue chimney is shown. This is made of sections whichare respectively single and double. One of the single sectionsis shownin Fig. 2 at 6. One of,

the double sections is shown in Fig. 1 at 7. The former consists of ahollow rectangular block forming a single flue. This is united with orplaced beside a similar block. to

sections.

form a double flue chimney. The double block 7 is referably only halfthe hei ht of the sing c section and contains two ue openings separatedby a cross wall 8 at the middle. This double section extends across 'theentire chimney and serves to assist in binding the same together. Thesingle sec tions (3 may be built up for one, two or more courses, andthen one of the bonding sections 7 is placed thereon, and thenadditional single sections are added, with double sections at intervals,until the desired height of chimne is reached. At the top the ch1m neymay ended by a plain cap block or section as indicated at 9. Or, one ofthe other heads may be used. The two blocks shown in Figs. 4 and 5 whenunited form an enlarged head of ornamental appearance. The hooded headshown in Fi 6 is useful under certain conditions. The latter may bemolded in one-piece by the use of a proper mold and core. a

The block sections are preferably marked or scored on the outside torepresent brick, as shown in the drawin but a lain or other finish maybe used instead. he sections are united by cement, and doweled jointsare formed by means of holes or depressions 10 in the to and bottom ofthe These doweli-d holes correspond with each other in the varioussections, and when the cement is applied and the sections are builttogether the cement will enter the holes and form a very effective bondwhich will hold the chimney together without the use of other fasteningdevices.

For a single flue chimney the single sections only are used, being builtone upon the other until the desired height is reached. It is obviousthat this may be done very uickly. By making the sections a foot hig itis only a few minutes work to set one upon the other to form a chimneyseveral stories high. By making the walls of the sections extendentirely around the flue, and cementcapable of being made in standardsizes or plurality of flue openings, and each block 10 can be made inspecial molds to suit special conditions.

I claim:

A chimney built of molded cement blocks some of the blocks having asingle flue opening through the same and placed in courses with aplurality of blocks in each course, and other bonding blocks having aforming a course.

In testimony whereof, I aflix my signature in presence of two wltnesses.

MILO E. HOWE. Witnesses WILLIAM YoUNonEN,

WILLIAM G. SANFORD.

